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Inventor

Chengfa YANG

Inventor
CN

Overview

2→
Patents
2022–2023
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B05Cprimary
B05CApparatus for applying fluent materials to surfaces, in general13%
C23CCoating metallic material13%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices13%
G06FElectric digital data processing13%
H01LSemiconductor devices13%
H10KOrganic electric solid-state devices13%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
PatentTitleYear
11,746,406Mask, preparation method and operation method thereof202311,250,185Method and apparatus for calculating equivalent mechanical parameters of film layer etching region2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2023Patents assigned to BOE TECHNOLOGY GROUP CO LTD (2)· patent assignee history
2022–2023Patents assigned to ORDOS YUANSHENG OPTOELECTRONICS CO LTD (2)· patent assignee history
2022–2023Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BOE TECHNOLOGY GROUP CO LTD22022–2023
ORDOS YUANSHENG OPTOELECTRONICS CO LTD22022–2023
Locations
LocationPatentsSpan
CN22022–2023